Divisors of 3240: All 40 Factors

Quick Answer

3240 has 40 divisors (factors): 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240.

Sum: 10890.

Divisors (Factors) Calculator


  Ex.: 12, 36, 100, 1024, 1728, etc.
40 divisors
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240

Use the calculator above to find all divisors (also called factors) of any positive integer up to 4,782,969. Beyond the divisor list, this tool also shows divisor pairs, the sum and count of divisors, prime factorization, and number properties (prime, perfect square, perfect number).

All Divisors of 3240

The number 3240 has 40 divisors:

1,  2,  3,  4,  5,  6,  8,  9,  10,  12,  15,  18,  20,  24,  27,  30,  36,  40,  45,  54,  60,  72,  81,  90,  108,  120,  135,  162,  180,  216,  270,  324,  360,  405,  540,  648,  810,  1080,  1620,  3240

Divisor Pairs of 3240

Each pair multiplies to 3240:

Factor 1×Factor 2=Product
1×3240=3240
2×1620=3240
3×1080=3240
4×810=3240
5×648=3240
6×540=3240
8×405=3240
9×360=3240
10×324=3240
12×270=3240
15×216=3240
18×180=3240
20×162=3240
24×135=3240
27×120=3240
30×108=3240
36×90=3240
40×81=3240
45×72=3240
54×60=3240

Number of Divisors

The number 3240 has 40 divisors, written as τ(3240) = 40 in number theory.

Sum of Divisors

σ(3240) = 1 + 2 + 3 + 4 + 5 + 6 + 8 + 9 + 10 + 12 + 15 + 18 + 20 + 24 + 27 + 30 + 36 + 40 + 45 + 54 + 60 + 72 + 81 + 90 + 108 + 120 + 135 + 162 + 180 + 216 + 270 + 324 + 360 + 405 + 540 + 648 + 810 + 1080 + 1620 + 3240 = 10890

Properties of 3240

  • 3240 is composite.
  • 3240 is not a perfect square.
  • Number of divisors: 40.
  • Sum of divisors: 10890.

Common Divisors with Another Number?

Looking for the divisors that 3240 shares with another number? Use our Greatest Common Factor (GCF) calculator — it finds all common divisors and the largest one.

Step-by-Step: How to Find the Divisors of 3240

An efficient way to find divisors uses the complementary pair trick: check each integer i from 1 to √3240 ≈ 56.92. If i divides 3240, then both i and 3240/i are divisors.

  1. 1 divides 3240 (3240 ÷ 1 = 3240) → pair (1, 3240)
  2. 2 divides 3240 (3240 ÷ 2 = 1620) → pair (2, 1620)
  3. 3 divides 3240 (3240 ÷ 3 = 1080) → pair (3, 1080)
  4. 4 divides 3240 (3240 ÷ 4 = 810) → pair (4, 810)
  5. 5 divides 3240 (3240 ÷ 5 = 648) → pair (5, 648)
  6. 6 divides 3240 (3240 ÷ 6 = 540) → pair (6, 540)
  7. 8 divides 3240 (3240 ÷ 8 = 405) → pair (8, 405)
  8. 9 divides 3240 (3240 ÷ 9 = 360) → pair (9, 360)
  9. 10 divides 3240 (3240 ÷ 10 = 324) → pair (10, 324)
  10. 12 divides 3240 (3240 ÷ 12 = 270) → pair (12, 270)
  11. 15 divides 3240 (3240 ÷ 15 = 216) → pair (15, 216)
  12. 18 divides 3240 (3240 ÷ 18 = 180) → pair (18, 180)
  13. 20 divides 3240 (3240 ÷ 20 = 162) → pair (20, 162)
  14. 24 divides 3240 (3240 ÷ 24 = 135) → pair (24, 135)
  15. 27 divides 3240 (3240 ÷ 27 = 120) → pair (27, 120)
  16. 30 divides 3240 (3240 ÷ 30 = 108) → pair (30, 108)
  17. 36 divides 3240 (3240 ÷ 36 = 90) → pair (36, 90)
  18. 40 divides 3240 (3240 ÷ 40 = 81) → pair (40, 81)
  19. 45 divides 3240 (3240 ÷ 45 = 72) → pair (45, 72)
  20. 54 divides 3240 (3240 ÷ 54 = 60) → pair (54, 60)
  21. Collect all unique values: {1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240} — total 40 divisors.
  22. Sum: 1 + 2 + 3 + 4 + 5 + 6 + 8 + 9 + 10 + 12 + 15 + 18 + 20 + 24 + 27 + 30 + 36 + 40 + 45 + 54 + 60 + 72 + 81 + 90 + 108 + 120 + 135 + 162 + 180 + 216 + 270 + 324 + 360 + 405 + 540 + 648 + 810 + 1080 + 1620 + 3240 = 10890.

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Related Operations for 3240

What Is a Divisor?

A divisor (also called a factor) of a positive integer n is any positive integer d such that n ÷ d has no remainder. In other words, d divides n evenly.

Every positive integer n has at least two divisors: 1 and n itself (with 1 being the trivial case of having only itself). Numbers with exactly 2 divisors are prime; numbers with 3 or more divisors are composite.

Why use this calculator? Beyond just listing divisors, this tool computes the sum σ(n), the count τ(n), prime factorization, divisor pairs (useful for visual learners and factoring problems), and detects whether n is a prime, a perfect square, or a perfect number.

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